SpECtop SLC

One-part self-levelling cement-based flooring compound.

Name: SpECtop SLC
Brand: SpEC
Availability: InStock

SpECtop SLC is a high-performance, one-part self-levelling flooring compound designed for quick and efficient leveling of various substrates. Its unique formulation includes specially selected cements, graded sands, and plasticizers, ensuring ease of application and durability.
Ideal for use in dry areas, this product provides a smooth and even surface for subsequent floor finishes, enhancing the aesthetic and functional quality of flooring systems.

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Technical Details

SpECtop SLC is an ideal solution for various flooring applications, specifically designed to meet the needs of construction and contracting companies. Typical uses include:

Producing smooth and levelled substrates for floor finishes including mineral screeds, concrete, tiles, and slabs.
Enhancing natural stones and terrazzo installations.
Preparing surfaces in dry areas only, ensuring optimal performance.
Not suitable for use on mastic asphalt screeds or as a screed or wearing surface.

SpECtop SLC offers a range of advantages that make it an excellent choice for self-levelling flooring applications. Its unique formulation and ease of use contribute to efficient and high-quality results. Key advantages include:

Self-levelling and pumpable, facilitating quick application.
Good strength values providing durability and long-lasting performance.

SpECtop SLC is designed with specific technical properties to ensure optimal performance in self-levelling applications:

Colour	Grey powder
Working time	Approx 20 minutes
Foot traffic	Overnight
Ready for covering	After 24 hours up to 3mm layer thickness
After 48 – 72 hours	Above 3mm layers thickness
Water content	25%
Flow table spread	270mm
Flexural strength of hardened mortars	5.5 N/mm²
Compressive strength of hardened mortars	22.69 N/mm²
Typical thickness	From 0.5 to 20mm in one single application

Application:
Surface Preparation:
It is essential that adequate preparation is carried out prior to the application of SpECtop SLC. The surface should be clean, free from structural defects, firm, permanently dry, and free of release agents. Light sweep blasting is recommended to ensure the removal of all laitance, grease, and oil. Always grind calcium sulphate screeds and vacuum clean.
Priming:
A primer is generally not required for smooth, sound concrete surfaces. For extremely porous substrates, use one coat of SpECtop SLC Primer at about 100μm wft and allow it to dry for at least 1 – 2 hours prior to the application of SpECtop SLC.
Mixing:
SpECtop SLC is supplied as a one-part floor levelling compound. The specified water quantity should be measured in an accurately graduated vessel and added to the mixer. The bagged powder is then added slowly whilst mixing using a slow speed heavy-duty drill fitted with a suitable mixing paddle (SpEC Technical Department can advise). Mix for 2 – 4 minutes. The recommended water used per 25kg bag is 6.25 litres.
Application Method:
Pour the mixed product onto the substrate and spread using a smoothing trowel or spreader. On non-absorbent mineral substrates, a minimum layer thickness of 2mm must be applied. Protect the freshly applied compound from direct sunlight and droughts. Do not use in wet or outdoor areas.

SpECtop SLC is available in the following packaging:
– Supplied in 25kg bags with a coverage rate of 1.5 kg/m²/1mm layer thickness.
– SpECtop SLC Primer is supplied in 5 and 20 litre packs with a coverage rate of 7 – 10 m²/litre.

For information regarding the warranty on SpECtop SLC, please contact our team at SMCC using any of the available contact methods provided on this page.

Product FAQ

What surfaces can SpECtop SLC be applied on?

SpECtop SLC can be applied on clean, dry concrete, mineral screeds, tiles, slabs, natural stones, and terrazzo. It is not suitable for mastic asphalt screeds.

What is the maximum thickness for SpECtop SLC?

The maximum thickness for SpECtop SLC is 20mm in a single application.

How long does SpECtop SLC take to cure?

SpECtop SLC is ready for foot traffic after approximately 24 hours and fully cures within 48 to 72 hours for thicknesses above 3mm.

Can SpECtop SLC be used outdoors?

No, SpECtop SLC is designed for indoor use only.

Is priming necessary before applying SpECtop SLC?

Priming is generally not necessary for smooth, sound concrete surfaces. For extremely porous substrates, one coat of SpECtop SLC Primer should be applied and allowed to dry for 1-2 hours before using SpECtop SLC.

Can SpECtop SLC be applied on asphalt surfaces?

No, SpECtop SLC should not be applied on asphalt surfaces. It is not suitable for use on mastic asphalt screeds.